<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
        #l-map{height:100%;width:78%;float:left;border-right:2px solid #bcbcbc;}
        #r-result{height:100%;width:20%;float:left;}
    </style>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=03gWbQ9mSu4dEKhQLrjYQGzBVdNinbbu"></script>
    <title>添加多个标注点</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
    // 百度地图API功能
    var map = new BMap.Map("allmap");
    var point = new BMap.Point(116.404, 39.915);
    map.centerAndZoom(point, 15);
    map.addControl(new BMap.NavigationControl());  //添加默认缩放平移控件
    // 编写自定义函数,创建标注
    function addMarker(point){
        var marker = new BMap.Marker(point);
        map.addOverlay(marker);
        map.enableScrollWheelZoom();

    }

    // 编写自定义函数,创建标注
    function addMarker(point,label){
        var marker = new BMap.Marker(point);
        map.addOverlay(marker);
        map.enableScrollWheelZoom();
        marker.setLabel(label);
    }

    // 随机向地图添加25个标注
    var bounds = map.getBounds();
    var sw = bounds.getSouthWest();
    var ne = bounds.getNorthEast();
    var lngSpan = Math.abs(sw.lng - ne.lng);
    var latSpan = Math.abs(ne.lat - sw.lat);
    for (var i = 0; i < 25; i ++) {
        var point = new BMap.Point(sw.lng + lngSpan * (Math.random() * 0.7), ne.lat - latSpan * (Math.random() * 0.7));
        var label = new BMap.Label("我是id="+i,{offset:new BMap.Size(20,-10)});
        addMarker(point,label);
        //addMarker(point);
    }
</script>
